What Are The Two Main Classes Of Energy? (Answer)
TWO MAIN CLASSES OF ENERGY – In this topic, we will now know and discuss the two main classes of energy and the meaning of each.
Energy, to put it simply, is the capacity in doing work. It exist in many types. Energy is often associated with motion.
Two Classes
Energy is usually divided into two main classes, according to WISC:
- Kinetic Energy
- The class most associated with motion. It is the energy possessed by an object in motion. In other words, the energy of a moving object.
- This energy is directly proportional to the mass of the object and the square of its velocity, which is expressed as: “KE = 1/2 mv2 “
- Examples:
- earth revolving around the sun
- you walking down the street
- and molecules moving in space
- a rolling ball
- Potential Energy
- It is an energy an object has due to its position relative to other objects stresses within itself, electric charge, and other factors. In other words, it is energy of an object at rest that is yet to be converted into kinetic.
- It can be expressed in the formula: “PE = mgh”, where:
- m = mass in kilograms
- g = the acceleration due to gravity (9.8 m / s2)
- h = height in meters
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